package com.dhx.controller;


import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.dhx.common.R;
import com.dhx.domain.Category;
import com.dhx.domain.Dish;
import com.dhx.domain.DishFlavor;
import com.dhx.dto.DishDto;
import com.dhx.service.ICategoryService;
import com.dhx.service.IDishFlavorService;
import com.dhx.service.IDishService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;

/**
 * <p>
 * 菜品管理 前端控制器
 * </p>
 *
 * @author 邓鹄翔
 * @since 2022-03-08
 */
@RestController
@RequestMapping("/dish")
@Slf4j
public class DishController {

    @Autowired
    private IDishService dishService;
    @Autowired
    private ICategoryService categoryService;
        @Autowired
        private IDishFlavorService dishFlavorService;
    /**
     * 分页
     *
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name) {
        //构造分页构造器对象
        Page<Dish> pageInfo = new Page<>(page, pageSize);
        Page<DishDto> dishDtoPage = new Page<>();

        //条件构造器
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        //添加过滤条件
        queryWrapper.like(name != null, Dish::getName, name);
        //添加排序条件
        queryWrapper.orderByDesc(Dish::getUpdateTime);

        //执行分页查询
        dishService.page(pageInfo, queryWrapper);

        //对象拷贝
        BeanUtils.copyProperties(pageInfo, dishDtoPage, "records");
        List<Dish> records = pageInfo.getRecords();
        List<DishDto> list = records.stream().map((item) -> {

            DishDto dishDto = new DishDto();
            BeanUtils.copyProperties(item, dishDto);
            Long categoryId = item.getCategoryId();//分类id
            //根据id查询分类对象
            Category category = categoryService.getById(categoryId);

            if (category != null) {
                String categoryName = category.getName();
                dishDto.setCategoryName(categoryName);
            }
            return dishDto;
        }).collect(Collectors.toList());
        dishDtoPage.setRecords(list);

        return R.success(dishDtoPage);
    }


    /**
     * 新增菜品
     *
     * @param dishDto
     * @return
     */
    @PostMapping
    public R<String> save(@RequestBody DishDto dishDto) {
        dishService.saveWithFlavor(dishDto);
        return R.success("新增菜品成功");
    }

    /**
     * 根据id查询
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<DishDto> getById(@PathVariable Long id) {
        DishDto byIdWithFlavor = dishService.getByIdWithFlavor(id);
        return R.success(byIdWithFlavor);
    }

    /**
     * 根据菜品修改
     *
     * @param dishDto
     * @return
     */
    @PutMapping
    public R<String> update(@RequestBody DishDto dishDto) {
        dishService.updateWithFlavor(dishDto);
        return R.success("修改成功");
    }

    /**
     * 根据条件查询对应的菜品数据
     * @param dish
     * @return
     */
    @GetMapping("/list")
    public R<List<DishDto>> list(Dish dish){
        LambdaQueryWrapper<Dish> dishWrapper = new LambdaQueryWrapper<>();
        dishWrapper.eq(dish.getCategoryId() !=null,Dish::getCategoryId,dish.getCategoryId());
        //添加条件，查询状态为1（起售状态）的菜品
        dishWrapper.eq(Dish::getStatus,1);
        //添加排序条件
        dishWrapper.orderByDesc(Dish::getSort).orderByDesc(Dish::getUpdateTime);
        List<Dish> list = dishService.list(dishWrapper);

        List<DishDto> dishDtoList =  list.stream().map((emp)->{
            DishDto dishDto = new DishDto();
            BeanUtils.copyProperties(emp,dishDto);
            Long categoryid = emp.getCategoryId();//分类id
            //根据id查询分类对象
            Category category = categoryService.getById(categoryid);
            if(categoryid!=null){
                String name = category.getName();
                dishDto.setCategoryName(name);
            }
            //当前菜品的id
            Long dishId = emp.getId();
            LambdaQueryWrapper<DishFlavor> dishFlavorWrapper = new LambdaQueryWrapper<>();
            dishFlavorWrapper.eq(DishFlavor::getDishId,dishId);
            List<DishFlavor> list1 = dishFlavorService.list(dishFlavorWrapper);
            dishDto.setFlavors(list1);
            return dishDto;
        }).collect(Collectors.toList());
        return R.success(dishDtoList);
    }



}

